Matchup

Trundle
Trundle
78%
22%

vs

48.6%

over 140 games

Illaoi
Illaoi
73%
27%
Heavy AD damageSustained DPSHigh sustainSplit push

Skill matchup

Build vs Illaoi

Build adapted to this matchup

Starting items

Doran's Blade
Health Potion

Core build

Trinity Force
1DPS
Hullbreaker
2Bruiser
Blade of The Ruined King
3DPS

Standard

Boots of Swiftness
4vs Slow
Ravenous Hydra
5DPS

Summoner spells

41470%
41219%

Anti AD

Plated Steelcaps
4vs AD
Thornmail
5vs Hybride
Randuin's Omen
vs AD
Frozen Heart
vs AD
Death's Dance
vs AD
Guardian Angel
vs AD
Dead Man's Plate
vs AD

Anti Heal

Mortal Reminder
6vs Hybride

Anti AP

Mercury's Treads
4vs CC
Spirit Visage
5vs AP
Wit's End
vs AP

Anti Tank

Black Cleaver
5vs Tank

DPS

Ravenous Hydra
DPS
Essence Reaver
DPS
Titanic Hydra
Bruiser
Stridebreaker
Bruiser

Other options

Bandlepipes
vs Hybride
Sterak's Gage
Survival
100.0% WR2 games
PrecisionPrecision
Lethal TempoLethal Tempo
TriumphTriumph
Legend: AlacrityLegend: Alacrity
Last StandLast Stand
ResolveResolve
DemolishDemolish
Bone PlatingBone Plating
Attack SpeedAdaptive ForceHealth Scaling

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
TrundleTrundle
IllaoiIllaoi
Neutral
Neutral
Neutral

Illaoi's abilities

Passive, spells and ultimate

Prophet of an Elder God (P)

Illaoi and the Vessels she creates spawn Tentacles on nearby impassible terrain. Tentacles swing at spirits, Vessels, and victims of Illaoi's Harsh lesson. Tentacles deal physical damage to enemies hit, and will heal Illaoi if they damage a champion.

Cooldowns

Cooldowns by spell rank

LevelQWER
310s4s16s
68s4s16s2m
96s4s16s2m
116s4s16s1m35
166s4s14s1m10
186s4s12s1m10

Playing against Illaoi

How to counter and exploit weaknesses

1

Dodge her E (Test of Spirit) at all costs — if she pulls your spirit, you must flee the area or fight at a massive disadvantage.

2

NEVER fight Illaoi in her tentacles: lure her elsewhere. Destroy tentacles when you can.

3

Her R is dangerous with multiple champions nearby — don't group on her. Fight her in a 1v1 outside her zone.

4

Illaoi has no mobility or hard CC: ganks and kiting are very effective.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026